80.58% is the change from 139 to 251
Calculation steps:
[( 251 - 139 ) ÷ 139] x 100 = 80.58%
Formula
Percentage change = [(251 - 139) / 139] x 100
Subtract the new number by the original number
251 - 139 = 112
112 ÷ 139 = 0.8057553956834532
0.8057553956834532 x 100 = 80.58%